This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A144198 #5 Mar 12 2015 23:15:53 %S A144198 0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0, %T A144198 0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0 %N A144198 Square array (8 X 8) read by rows. %C A144198 Permutation contributing to the determinant that gives the 8th value of the Möbius function. Determinant of matrix is equal to -1. The array is symmetrical. %H A144198 H. S. Wilf <a href="http://www.citebase.org/fulltext?format=application%2Fpdf&identifier=oai%3AarXiv.org%3Amath%2F0408263">The Redheffer matrix of a partially ordered set</a> %e A144198 The array is: %e A144198 0,0,0,0,0,0,0,1 %e A144198 0,1,0,0,0,0,0,0 %e A144198 0,0,1,0,0,0,0,0 %e A144198 0,0,0,1,0,0,0,0 %e A144198 0,0,0,0,1,0,0,0 %e A144198 0,0,0,0,0,1,0,0 %e A144198 0,0,0,0,0,0,1,0 %e A144198 1,0,0,0,0,0,0,0 %Y A144198 Cf. A143104, A002033, A144197, A144199. %K A144198 fini,full,nonn,tabf %O A144198 1,1 %A A144198 _Mats Granvik_, Sep 13 2008